Sequential Color-Coded Tubes in Medical Sample Collection Quiz

Test your knowledge of phlebotomy with questions on tube colors, additives, and their roles in blood sample collection.

#1

What is the color of the tube typically used for collecting blood samples for complete blood count (CBC)?

Blue
Lavender
Green
Red
#2

Which additive is commonly found in the red-colored tubes used for collecting blood samples for serum chemistry tests?

EDTA
Sodium citrate
SST gel
Silica particles
#3

What is the purpose of using anticoagulants in blood collection tubes?

To promote blood clotting
To prevent blood clotting
To enhance sample stability
To increase sample viscosity
#4

Which color tube is commonly used for collecting blood samples for blood bank serology tests?

Green
Yellow
Black
Pink
#5

Which color tube is typically used for collecting blood samples for glucose testing?

Green
Grey
Red
Yellow
#6

What does the term 'order of draw' refer to in phlebotomy?

The sequence in which blood samples are collected into tubes
The physical location where blood samples are drawn
The instructions given to patients before blood collection
The process of organizing blood collection supplies
#7

What is the purpose of using different colored tubes in sequential order during blood sample collection?

To make the process visually appealing
To differentiate between different types of samples
To confuse the laboratory personnel
To save cost on tube manufacturing
#8

Which of the following tests can typically be performed on a blood sample collected in a green-colored tube?

Complete blood count (CBC)
Prothrombin time (PT)
Glucose tolerance test (GTT)
Blood cultures
#9

Which anticoagulant is typically found in purple-colored tubes?

EDTA
Sodium citrate
Heparin
Sodium fluoride
#10

What is the purpose of using gel separators in blood collection tubes?

To separate plasma from serum
To prevent sample contamination
To enhance sample mixing
To facilitate sample transportation
#11

Which of the following tubes is commonly used for collecting blood samples for blood glucose tests in diabetic patients?

Red
Green
Grey
Light blue
#12

What is the purpose of the black-colored tubes used in blood collection?

To collect blood for routine chemistry tests
To collect blood for hematology tests
To collect blood for coagulation studies
To collect blood for trace element analysis
#13

In which tube color would you expect to find a sample collected for plasma preparation for coagulation studies?

Red
Light blue
Gold (or tiger top)
Pink
#14

Which type of sample collection tube is commonly used for molecular diagnostics and DNA testing?

Light blue
Yellow
Pink
Black
#15

Which anticoagulant is commonly found in light blue-colored tubes?

EDTA
Sodium citrate
Heparin
Sodium fluoride
#16

Which color tube is commonly used for collecting blood samples for lead level testing?

Green
Royal blue
Lavender
Pink
#17

Which color tube is commonly used for collecting blood samples for erythrocyte sedimentation rate (ESR) testing?

Red
Black
Lavender
Yellow

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